Finding the Fourth Proportional to 139,974.36, 193,012.20 and 94,573.68
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Solution
The fourth proportional to 139,974.36, 193,012.20 and 94,573.68 is: 130,408.70
Step by Step Solution
- Step 1: Write the proportion equation
139,974.36 : 193,012.20 = 94,573.68 : x - Step 2: Convert to fraction form
139,974.36/193,012.20 = 94,573.68/x - Step 3: Cross multiply
139,974.36x = 193,012.20 × 94,573.68 - Step 4: Simplify right side
139,974.36x = 18,253,874,038.90 - Step 5: Solve for x
x = 18,253,874,038.90/139,974.36 - Step 6: Final answer
x = 130,408.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.